NTB: Fix an error code in ntb_msit_probe()

[ Upstream commit 319f83ac98d7afaabab84ce5281a819a358b9895 ]

When the value of nm->isr_ctx is false, the value of ret is 0.
So, we set ret to -ENOMEM to indicate this error.

Clean up smatch warning:
drivers/ntb/test/ntb_msi_test.c:373 ntb_msit_probe() warn: missing
error code 'ret'.

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/ntb/test/ntb_msi_test.c b/drivers/ntb/test/ntb_msi_test.c
index 7095ecd..4e18e08 100644 (file)
--- a/drivers/ntb/test/ntb_msi_test.c
+++ b/drivers/ntb/test/ntb_msi_test.c
@@ -369,8 +369,10 @@ static int ntb_msit_probe(struct ntb_client *client, struct ntb_dev *ntb)
        if (ret)
                goto remove_dbgfs;
 
-       if (!nm->isr_ctx)
+       if (!nm->isr_ctx) {
+               ret = -ENOMEM;
                goto remove_dbgfs;
+       }
 
        ntb_link_enable(ntb, NTB_SPEED_AUTO, NTB_WIDTH_AUTO);